Soundmask SM-GS-3200 User manual

www.soundmask.com.au
MODEL SM-GS-3200
OPERATING MANUAL
RANDOM DIGITAL SOUND GENERATOR

01 www.soundmask.com.au
The information furnished in this manual does not
include all of the details of design and engineering
of this particular product; nor does it cover every
possible application or situation concerning its
usage, which may occur during the installation,
operation or maintenance of the product.
IMPORTANT - THE PRODUCT
REQUIRES CLASS 2 OUTPUT WIRING
TO PREVENT ELECTRIC SHOCK, DO NOT REMOVE
TOP OR BOTTOM COVERS. NO USER SERVICEABLE
PARTS INSIDE. REFER SERVICING TO QUALIFIED
PERSONNEL. DISCONNECT POWER CORD BEFORE
REMOVING REAR PANEL COVER TO ACCESS GAIN
SWITCH.
TO REDUCE THE RISK OF ELECTRIC
SHOCK, DO NOT EXPOSE THIS
EQUIPMENT TO RAIN OR MOISTURE!
Safety Instructions
1. Read, follow and retain these instructions.
2. Read all warnings.
3. The apparatus must not be exposed to dripping or
splashing and no objects filled with liquids, such as
vases, may be placed on the apparatus. Do not use
this apparatus near water. Clean only with a damp
cloth.
4. The apparatus must be connected to a mains
socket outlet with a protective earthing connection.
5. The appliance coupler must remain readily
operable for disconnection from the mains.
6. Do not block any of the ventilation openings.
Install in accordance with the manufacturer’s
instructions.
7. Do not install near any heat sources such as
radiators, heat registers, stoves, or other apparatus
that produce heat.
8. Do not install the safety purpose of a polarized or
grounding-type plug. A polarized plug has two blades
with one wider than the other. A grounding-type
plug has two blades and third grounding plug. The
wide blade or the third prong is provided for your
safety. When the provided plug does not fit into your
outlet, consult an electrician for replacement of the
obsolete outlet.
9. Protect the power cord from being walked on or
pinched, particularly at plugs, convenience at plugs,
convenience receptacles, and the point where they
exit from the apparatus.
10. Only use power cord from attachments/
accessories specified by the manufacturer.
11. Unplug this apparatus during lightning storms or
when unused for long periods of time unless there is
a surge diverter on that circuit or that protects that
circuit.
12. Refer all servicing to qualified service personnel.
Servicing is required when the apparatus has been
damaged in any way, such as power-supply cord or
plug is damaged, liquid has been spilled or objects
have fallen into the apparatus, the apparatus has
been exposed to rain or moisture, or does not
operate normally.
Please follow the instructions in this manual to
obtain the optimum results from this unit. We also
recommend that you keep this manual handy for
future reference.
IMPORTANT SAFETY INFORMATION

02
Copyright © 2015 Soundmask Australia Pty Ltd. All Rights Reserved.
Model SM-GS-3200
Generator Microcontroller based digital random noise generator
› Blue LCD display
› Digital button lock to preserve settings
Amplier PWM oscillator is up to 1.0M
› 50W x 2 RMS into 6W with Vcc 24V
› 50W x 2 RMS into 8W with Vcc 28V
› 24-28V Vcc Supply Voltage Operation
› Full Bridge (BTL) output Amplier
› Integrated Short Circuit Protection
› Integrated Thermal shutdown
› Start Up De-pop Circuit
› Eciency up to 90%
› Frequency response 20Hz-20kHz
Power External power in 110 – 240V AC 50/60Hz
› Output 24V - 2A
Dimensions & Weight 200 x 165 x 35 mm, 900 g
Compliance
Safety information Mount unit in locations that provide unobstructed air movement to minimise the risk of overheating.
GENERAL DESCRIPTION
SPECIFICATIONS
The Soundmask SM-GS-3200 is a microcontroller
controlled digital random noise generator with an
effective frequency range of 20Hz to 20kHz. The
digitally generated Gaussian noise is passed through
a Spectrum Shaper to flatten its response through
the midrange, corresponding to human speech
frequencies. The random noise is amplified through a
50W full bridge digital amplifier capable of driving 50
Soundmask speakers. The device’s output can also
be adjusted to ramp up when the device is switched
on for a more acoustically comfortable start up.
The generator has an external power supply (refer
below).
The SM-GS-3200 is small enough to use virtually
anywhere, and can hook in with a variety of different
speaker set-ups. It can be connected with all
Soundmask transducers.

03 www.soundmask.com.au
USER INTERFACE
The user interface is controlled by two buttons and
the response is displayed by the LCD. Pressing both
buttons at the same time for 6 seconds (this delay
can be changed in firmware settings) will unlock the
device displaying the current volume settings. Once
unlocked, the volume can be increased by pushing
the button pointing upwards, or decreased by the
button pointing downwards.
If the buttons are not pressed for 30 seconds (this
delay is also settable in the firmware) then the device
will return back to its normal state and display the
word “Active”. At this point the new volume setting is
written back to the EEPROM and will be the default
volume.
Note that if the volume is set, and the device is then
powered down before it has returned to its normal
state, then at the next power up it will revert to the
previous volume state, not the one last set.
DIMENSIONAL DIAGRAM
200 mm
165 mm
35 mm

04
Copyright © 2015 Soundmask Australia Pty Ltd. All Rights Reserved.
EXAMPLE LAYOUT
RANDOM DIGITAL NOISE GENERATOR SM-GS-3200
NOTES
› Each SM-TC-1265 pictured
represents multiple transducers.
› Diagram not to scale.
TRANSDUCER SM-TC-1265

Copyright © 2015 Soundmask Australia Pty Ltd. All Rights Reserved.
To the best of our knowledge, the material contained within this document was accurate at the time of printing.
No liability or otherwise is assumed for the accuracy of this document.
No warranty is given or implied as to the accuracy of any part of the document.
TROUBLESHOOTING
If the unit is running slowly or “freezes up”, reset the unit by turning it off using the power switch.
Leave the unit to reset for 15 minutes before turning the power switch on again.
For any further problems, contact us via the detail below.
CONTACT
NOTES
1300 734 168 (within Australia)
[phone]
[email protected]
Soundmask Australia Pty Ltd
Soundmask Australia Pty Ltd
PO Box 4068
Balwyn VIC 3103
AUSTRALIA
www.soundmask.com.au